From: Julien Grall <julien.grall@linaro.org>
To: Pavlo Suikov <pavlo.suikov@globallogic.com>,
Ian Campbell <Ian.Campbell@citrix.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
xen-devel@lists.xen.org
Subject: Re: xentrace, arm, hvm
Date: Sat, 08 Feb 2014 21:04:02 +0000 [thread overview]
Message-ID: <52F69BC2.8010103@linaro.org> (raw)
In-Reply-To: <CAE4oM6wFyRMXw==kkHFr0Gy7JS9=GZQyJ5grHQRr82CdT+gbOw@mail.gmail.com>
Hi Pavlo,
On 08/02/14 15:51, Pavlo Suikov wrote:
> After making a quick workaround to rcu_lock DOMAIN_XEN on arm (in the
> quite same manner it is done in x86) I've faced different problem.
> Specifically, p2m_lookup for an address in the xen restricted heap fails
> on the very first map call: p2m_map_first returns zero page due to both
> p2m->first_level and p2m_first_level_index(addr) equal to zero. As far
> as I understand xen simply does not know how to make p2m translation for
> it's own restricted heap on arm. Am I right?
Another thing to take into account, xen heap pages can be mapped
read-only or read-write. You will have to check that when the page is
mapped into the domain.
--
Julien Grall
prev parent reply other threads:[~2014-02-08 21:04 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-03 17:32 xentrace, arm, hvm Pavlo Suikov
2014-02-03 20:32 ` Julien Grall
2014-02-04 12:39 ` Pavlo Suikov
2014-02-04 13:31 ` Julien Grall
2014-02-04 13:57 ` Ian Campbell
2014-02-08 15:51 ` Pavlo Suikov
2014-02-08 16:53 ` Julien Grall
2014-02-08 21:04 ` Julien Grall [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=52F69BC2.8010103@linaro.org \
--to=julien.grall@linaro.org \
--cc=Ian.Campbell@citrix.com \
--cc=pavlo.suikov@globallogic.com \
--cc=stefano.stabellini@eu.citrix.com \
--cc=xen-devel@lists.xen.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).